why did my sound stop wroking once i had to force stop my borad cast? the only way it while wrok now is if i have it broadcatinglive but iv tryed to remove and and seeif i had sound then and still no sound waht can i do to fix this im only a new mac user! and i need my sound rally badly back with out it i cant rally tell if anything going on with my laptop or hear anything for my art plz help me!